Match pattern does not work correctly when you are looking for a null character

I use the match pattern to retrieve a string NULL completed a response, I'm getting a device on a serial port. The VI is attached and here is a screenshot of the block diagram.

It works very well with the index value 0, 1, or 2. When index is 3, I get the result below.

Why model matching is not finding the null character?

Thank you!


I'm Datura, need to remove the cable from the shift control for the control of the match pattern.


Tags: NI Software

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